Stretchable multifunctional self-powered systems with Cu-EGaIn liquid metal electrodes

Yang, Jiahong; Cao, Jinqing; Han, Jing; Xiong, Yao; Luo, Lan; Dan, Xiaozhen; Yang, Yunhai; Li, Linlin; Sun, Jia; Sun, Qijun

doi:10.1016/j.nanoen.2022.107582

Cited by 45 publications

(27 citation statements)

References 63 publications

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“…According to the report of, it was found that the diffraction characteristic peak position was consistent with the peak position of the compound CuGa 2 . [ 35 ] Secondly, the SEBS granules were molded into a solid rod (Figure S4, Supporting Information), and the center of the rod was drilled to form a thermal drawing preform. The preform was then slowly drawn into hollow fibers in a drawing tower.…”

Section: Resultsmentioning

confidence: 99%

Thermally Drawn Super‐Elastic Multifunctional Fiber Sensor for Human Movement Monitoring and Joule Heating

Wan

Yang³

et al. 2023

Adv Materials Technologies

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With the increasing demand of smart electronic textiles, fiber‐shaped sensing devices have rapidly attracted growing interests, in which elastic fiber sensors can monitor a wider range of strains without compromising their flexibility and adaptability with conventional textiles. However, it is still a major challenge to prepare highly sensitive and durable sensing fibers with multifunction. Herein, using a thermally drawn process, highly stretchable elastomeric fibers that are composited with copper particle‐mixed liquid metal electrodes to produce highly elastic piezoresistive strain sensor are fabricated. The composite liquid medal fiber sensor (LMFS) exhibits a strain at break up to 850% and a tensile stress of 6 MPa. When used as a tensile sensor, LMFS can detect large strain levels up to 400%. As a pressure sensor, LMFS can detect an object as light as 0.2 N. The composite fibers can be integrated into a fabric to monitor human motions and Morse code signals. In addition, the fibers can also be applied as an electric heater, the temperature quickly reaches 45 °C at 0.6 V in its original length and 29.3 °C at 0.6 A current with a 250% strain. This work exhibits excellent potential of multifunctional fiber devices in wearable sensing devices.

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Section: Resultsmentioning

confidence: 99%

Thermally Drawn Super‐Elastic Multifunctional Fiber Sensor for Human Movement Monitoring and Joule Heating

Wan

Yang³

et al. 2023

Adv Materials Technologies

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“…Flexible transparent electrodes with a high conductivity of approximately S/m can be realized using ion gel as a protective layer and Ag nanowires as a conductive material 44 . Flexible and stretchable micro-supercapacitors can be realized using an ion gel as a dielectric and LM mixed with Cu as a conductive material 45 . In this study, the conductive material was patterned simply by casting it into a PDMS mold using an ion gel as an insulative layer and LM as a conductive material.…”

Section: Discussionmentioning

confidence: 99%

Self-assembling bilayer wiring with highly conductive liquid metal and insulative ion gel layers

Murakami

Isano

Asada

et al. 2023

Sci Rep

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Ga-based liquid metals (LMs) are expected to be suitable for wiring highly deformable devices because of their high electrical conductivity and stable resistance to extreme deformation. Injection and printed wiring, and wiring using LM–polymer composites are the most popular LM wiring approaches. However, additional processing is required to package the wiring after LM patterning, branch and interrupt wiring shape, and ensure adequate conductivity, which results in unnecessary wiring shape changes and increased complexity of the wiring methods. In this study, we propose an LM–polymer composite comprising LM particles and ion gel as a flexible matrix material with low viscosity and specific gravity before curing. Moreover, the casting method is used for wire patterning, and the material is cured at room temperature to ensure that the upper insulative layer of the ion gel self-assembles simultaneously with the formation of LM wiring in the lower layer. High conductivity and low resistance change rate of the formed wiring during deformation are achieved without an activation process. This ion gel–LM bilayer wiring can be used for three-dimensional wiring by stacking. Furthermore, circuits fabricated using ion gel–LM bilayer wiring exhibit stable operation. Therefore, the proposed method can significantly promote the development of flexible electronic devices.

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“…However, as the world shifts into the age of AI and the IoT, the range of human activities is expanding everywhere in the world (and even to Mars), which greatly boosts the use of wireless sensors. A wireless sensor, which is portable and remotely controllable, can function in volcanic craters, long-distance transmission lines, oil or gas pipelines, long-distance optical cables, forests, oceans, or other places where humans cannot work for extended periods of time [ 7 ]. The use of wireless sensors makes the IoT a reality and provides fundamental data for AI, which constructs a digital world that serves humans.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Self-Powered Wireless Sensors and Systems Based on TENG

Wei

et al. 2023

Sensors

Self Cite

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With the development of 5G, artificial intelligence, and the Internet of Things, diversified sensors (such as the signal acquisition module) have become more and more important in people’s daily life. According to the extensive use of various distributed wireless sensors, powering them has become a big problem. Among all the powering methods, the self-powered sensor system based on triboelectric nanogenerators (TENGs) has shown its superiority. This review focuses on four major application areas of wireless sensors based on TENG, including environmental monitoring, human monitoring, industrial production, and daily life. The perspectives and outlook of the future development of self-powered wireless sensors are discussed.

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Stretchable multifunctional self-powered systems with Cu-EGaIn liquid metal electrodes

Cited by 45 publications

References 63 publications

Thermally Drawn Super‐Elastic Multifunctional Fiber Sensor for Human Movement Monitoring and Joule Heating

Thermally Drawn Super‐Elastic Multifunctional Fiber Sensor for Human Movement Monitoring and Joule Heating

Self-assembling bilayer wiring with highly conductive liquid metal and insulative ion gel layers

Recent Progress in Self-Powered Wireless Sensors and Systems Based on TENG

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